polar star tables

简明释义

北极星高度表

英英释义

例句

1.During the expedition, the team relied on polar star tables for orientation.

在探险过程中，团队依靠极星表进行定位。

2.Using polar star tables'>极星表，导航员可以根据星星的位置确定他们的纬度。

3.In astronomy classes, students learn how to use polar star tables'>极星表来定位天体。

4.The polar star tables are essential for understanding the night sky.

理解夜空时，极星表是必不可少的。

5.Sailors often refer to polar star tables to navigate accurately at sea.

水手们常常参考极星表以便在海上准确导航。

作文

The concept of navigation has evolved significantly over the centuries, but one of the most fascinating tools used by ancient mariners was the polar star tables. These tables were essential for celestial navigation, allowing sailors to determine their latitude and longitude based on the position of the stars, particularly the North Star, or Polaris. The polar star tables provided a systematic way to calculate the angle of elevation of Polaris above the horizon, which directly correlates to the observer's latitude. In the age of exploration, when maps were scarce and the oceans were vast, these tables became invaluable. Sailors relied on the polar star tables to guide them through treacherous waters, ensuring they could find their way home or discover new lands. The ability to navigate using the stars not only demonstrated the ingenuity of early navigators but also highlighted the importance of understanding celestial movements.The creation of polar star tables required meticulous observations of the night sky. Astronomers would spend countless hours charting the positions of stars and compiling data that could be used by sailors far from the shore. This process involved both mathematical calculations and practical experience at sea. Each table was tailored to specific latitudes, making it crucial for sailors to know their position in order to use these tools effectively.In addition to their practical applications, polar star tables also served as a bridge between science and art. The intricate designs and detailed illustrations found in historical navigation manuals reflect the beauty of the night sky and the deep connection humans have with the cosmos. These tables were not just functional; they were a testament to human curiosity and the desire to explore the unknown.As technology advanced, the reliance on polar star tables diminished. The invention of the sextant and more sophisticated navigational tools made it easier for sailors to determine their location without the need for complicated tables. However, the fundamental principles behind the polar star tables remain relevant today. Understanding how to navigate by the stars is a skill that, while not commonly practiced in modern times, still holds value for adventurers and survivalists.In conclusion, the polar star tables represent a remarkable achievement in the history of navigation. They symbolize the intersection of science, art, and adventure. While we may rely on GPS and other technologies today, the legacy of these tables endures, reminding us of the importance of observation and knowledge in our quest to explore the world. Whether you are an aspiring sailor, a history enthusiast, or simply someone intrigued by the stars, the story of the polar star tables is one that captures the imagination and highlights the wonders of human ingenuity.

导航的概念在几个世纪中发生了显著变化，但古代水手使用的最迷人的工具之一就是极星表。这些表对于天文导航至关重要，使水手能够根据星星的位置，特别是北极星（或称为极星），确定他们的纬度和经度。极星表提供了一种系统化的方法来计算北极星在地平线上的高度角，这与观察者的纬度直接相关。在探索时代，当地图稀缺、海洋辽阔时，这些表变得不可或缺。水手依赖于极星表来引导他们穿越险恶的水域，确保他们能够找到回家的路或发现新大陆。利用星星进行导航的能力不仅展示了早期航海者的聪明才智，也突显了理解天体运动的重要性。极星表的制作需要对夜空进行细致的观察。天文学家会花费无数小时绘制星星的位置并编制数据，以便远离海岸的水手使用。这一过程涉及数学计算和海上实践经验。每个表都是针对特定纬度量身定制的，因此水手必须知道他们的位置才能有效使用这些工具。除了实用应用外，极星表还作为科学与艺术之间的桥梁。历史导航手册中精美的设计和详细插图反映了夜空的美丽以及人类与宇宙之间的深厚联系。这些表不仅具有功能性；它们是人类好奇心和探索未知愿望的见证。随着技术的进步，对极星表的依赖逐渐减少。六分仪和更复杂的导航工具的发明使水手能够更轻松地确定他们的位置，而无需复杂的表格。然而，极星表背后的基本原理在今天仍然适用。理解如何通过星星进行导航是一项技能，尽管在现代不常实践，但对冒险者和生存主义者来说仍然具有价值。总之，极星表代表了导航史上的一个非凡成就。它们象征着科学、艺术和冒险的交汇点。虽然我们今天可能依赖于GPS和其他技术，但这些表的遗产依然存在，提醒我们在探索世界的过程中观察和知识的重要性。无论你是一个有抱负的水手、历史爱好者，还是只是对星星感兴趣的人，极星表的故事都是一个引人入胜的故事，突显了人类智慧的奇迹。